MOVINdow
Frame-by-frame video analysis — step through video from 1/1000 of a second
Step through any video frame by frame, down to 1/1000 of a second, on iPhone, iPad, and Mac. MOVINdow keeps multiple videos synchronized while you step — advance one frame and every video advances together, so two swings stay locked in comparison. Trim by time from 1/100 of a second. Free, on-device.
Synced stepping — the part other players can't do
Frame-by-frame controls exist in many apps. What MOVINdow adds is that stepping works across multiple synchronized videos at once: your swing and the pro's swing move forward frame by frame together, never drifting apart. Combine it with semi-transparent overlay for one-view comparison.
Playback controls
- Frame-by-frame stepping from 1/1000 of a second
- Play/pause, seek bar, and playback speed — synced across all videos or per video (Solo)
- Simultaneous fast-forward and rewind across multiple videos
Precision trimming
Time-based trimming from 1/100 of a second lets you cut a video down to exactly the phase you need — the impact frame of a golf swing, the take-off of a jump, the release point of a pitch.
Use cases
- Find the exact impact or release frame in golf, baseball, or tennis footage.
- Compare take-off timing between two attempts, frame by frame, side by side. See sports video analysis.
- Referee-style review of close moments.
FAQ
- How do I step through a video frame by frame on iPhone?
- Open a video in MOVINdow and use the playback controls: frame-by-frame stepping works from 1/1000 of a second, together with play/pause, seek bar, and speed control.
- Can two videos stay in sync while stepping frame by frame?
- Yes. With synced playback control, stepping one frame advances every video together, so two forms stay locked for comparison.
- How precise is the trimming?
- Time-based trimming works from 1/100 of a second, so you can isolate exactly the phase of motion you need.
- Is it free? Does it upload my video?
- Currently free, and processing is on-device. MOVINdow itself does not upload your videos; your photo library may sync with iCloud according to your device settings.